Mine Gases - Usmra.com

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Hydrogen– Chemical Formula: H 2– Specific Gravity: 0.0695– Needs 5% oxygen to ignite– Explosive Range: 4.1-74%– Ignition temperature: 1030 o -1130 o F– Source: Water on super hotfires, battery charging
Noxious <strong>Gases</strong>(Non Explosive)• Nitrogen– Chemical formula: N 2– Specific Gravity: 0.967– TLV: 810,000 PPM– Source: Atmosphere, released from coalseam– Characteristics: No color, odor, or taste
Page 1 and 2: Mine RescueGasDetectionPa. Bureau o
Page 3 and 4: Category of Gases• Noxious - Asph
Page 5 and 6: Exposure Limits• Threshold Limit
Page 7 and 8: Mine Gases & their ComponentsAIR•
Page 9 and 10: Oxygen Present % Effect• 21% Brea
Page 11: Acetylene- Chemical Formula: C 2 H
Page 15 and 16: Toxic Gases(Explosive)• Carbon Mo
Page 17 and 18: Toxic Gases (Non-Explosive)• Nitr
Page 19 and 20: Smoke• Tiny particles of solid an
Page 21: Detection Devices• Hand held dete

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